Pump-operating mechanism.



No., 732,628. PATBNTED JUNE so, 1903.

G. A. GBMMER. I

PUMP OPERATING MEGHANISM. APLIOATION FILED HAY 29, 1902.

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` 'ATTORNEY PATENTED JUNE so, 1903;v

G. A. GEMMER. PUMP OPERATING MEGHANISM.

APPLIOATION FIL-BD MAY 29, 1902.

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Afro/fm" latentedV J' une 30, 1903.

PATENT OFFICE.

GEORGE A. GEMMER, OF MARION, INDIANA.

l PUMP-OPERATING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 732,628, dated J une 30, 1903.

Application filed May 29, 1902. Serial No. 109,485. (No model.)

A T a/ZZ whom t may concern:

the construction of pump-operating mechan' ism, so as to furnish a support for the pumping -jack, make the device comparatively small, cheap in construction and neat in appearance, and have the parts at the same time convenient for manipulating and controlling the same. Y

The features of the invention will be understood from the accompanying drawings and the following description and claims.

In the drawings, Figure 1 is a side elevation of the pump-actuating mechanism. Fig. 2 is a side elevation of the actuated end of the bell-crank with connected parts, parts being in section with the bell-crank broken away and showing the position of the parts during actuation. Fig. 3 is the same, showing the position of the parts when the pump is not being actuated. Fig. 4 is a horizontal section on the line 4 4of Fig. 1. Fig. 5 is a side elevation of the trunnion shown in Fig. 4, one end being brokenaway. Fig. 6 is an end elevation of the plate connected with the trunnion. Fig. 7 is a plan view of Fig. 2;

Referring now to the details, 10 is a stationaryplatform in which the pump 11 is mounted.v

12 is a removable platform secured rigidly to the platform 10 or any other suitable support and carries the major portion of the pump-actuating mechanism.

On the platform 10 in the drawings herein there is mounted an upright gasolene-engine. The particular style of engine is immaterial to this invention and will not be here explained further. On said engine I mount a reducing-gear 15, having near its center a number of holes 16 at varying distances from the center of thewheel in which the connecting-rod 17 is removably mounted and whereby the throw of the connecting-rod 17 may be predetermined and adj usted.

To the platform 12 afulcrum-plate 18 is seform the extension 23, which contains a short vertically-extending slot 24, that communicates with the horizontal slot 22. The actuating end of the connecting-rod 17 vis turned at a right angle to form the pin 25, that extends through the slot 24 and is held lup in such slot by a catch 26, that :reaches under `the pin 25, as'shown in Fig. 2. The catch 26 is pivoted to the extension 23 by the pin 27 and yhas a horizontally-extending weighted handle 28 in the form of a bell-crank. The handle 28 holds the catch 26 in engagement with the pin 25, and such catch holds the pin 25 in the slot v24, whereby power is transmitted from the engine to the bell-crank for actuating the latter. When it is desired not to actuate the bellcrank,the handle 28 is thrown upward into the position shown in Fig. 3, which causes the catch 26 to disengage the pin 25 on the conmeeting-rod and allow said pin to drop down into the horizontal yslot 22, in which said pin 25 freely reciprocates duringthe operation .of the engine without actuating the bellcrank. The catch 26 and handle 28 are held out of the way of rod 17 by pin 44. Power Vis transmitted from the actuating end of the bell-crank 2O to the pump-rod 30 through a .pair of bars or links 31 and a trunnion 32.

The actuating end ofthe bell-crank 20 is bifurcated to form the two arms 33, which extend on each1side`of the pump 11 and by the pins 34 are pivoted to the clips 35, secured to the lower ends of the vbars 31, said bars being preferably made of wood. The trunnion 32 has its ends turned round and pivotally mounted in the clips 36, secured to the upper ends of the bars 31. The ltrunnion isprovided with a central vertically-extending recess 45, formed, preferably, by bending the centralportion of the trunnion laterally, as appears in Fig. 4. In the recess thus formed the pump-rod 30 fits and is held in said recess in the trunnion by the vertically-disposed clamping-plate 37, which is grooved in the loo direction opposite to that of the angle in the trunnion and is clamped to the trunnion by the U-shaped bolt 38 and nuts 39. To hold the parts together firmly, the trunnion is centrally and longitudinally slotted at 40, While the clamping-plate 37 has on each side a een tral extension 4l, that extends through said slot 40, as appears in Fig. 4. Said extensions 4l are horizontally grooved, and there is also a groove 42 in the back of the clamping-plate 37, in which the bolt 38 fits or rests. There is a horizontal extension 43 on each side of both the upper and lower ends of the clamping-plate 37, which extend above and below the trunnion 32. This makes an etectual means for secu ring the trunnion to the pumprod, which enables the connection between these two members to be adjusted to snit the pump-rods of Varying lengths. In constructing the mechanism the bars 3l are made quite long to accommodate a long pump-rod, and when it is mounted and combined with the pump the bars 3l are cut oit` and shortened to suit the length of the pump-rod.

The advantages of this pump-actuating mechanism are that it is better supported than the walking-beam type, as the support is on the base and very rigid. The mechanism is not bulky and is easily carried and handled. The construction is such that the total cost is comparatively small, and the device possesses a neat appearance. The pumping attachments are such that connection may be made with any pump. Any form or size of pump-rod may be gripped by the trunnion and parts connected therewith, and the thrust is along the center vertical line of the pump-rod, so that there is no side strain.

W'hat is claimed to be the invention, and desired to be secured by Letters Patent, is-

l. Apump-operating mechanism including a bell-crank for actuating the pump, a reciprocable rod for actuating the bellcrank, means on one of said parts to guide the movements ofthe other part when the two are disconnected, and releasable means for connecting said rod with the bell-crank.

2. Apump-operating mechanism including a bell-crank suitably mounted with its driven arm having in it a slot extending substantially at a right angle to said arm, a reciprocating rod for actuating said bell-crank with a pin extending into said slot, and releasable means for connecting said rod to said arm of the bell-crank.

3. Apump-operating mechanism including a bell-crank suitably mounted with one arm provided with a head having in it a long slot and a short slot or notch communicating with the long slot, a reciprocating rod for actuating said bell-crank with a pin extending through the slot in the head of the bell-crank, and a movable catchy pivoted to the head of the bell-crank and adapted when in 011e position to hold the pin of the actuating-rod centrally in the short slot or notch and when in another position to release said pin and permit it to reciprocate idly in the long slot.

It. Apump-operatingmechanism including a bell-crank suitably mounted with one arm provided with a head having in it a long slot extending substantiallyatarightangleto said arm and a short slot communicating with the long slot or notch and extending ata right angle from the middle of the long slot, a reciprocating rod for actuating said bell-crank with a pin extending through the slot in the head of the bell-crank, a movable catch pivoted to the head ot' the bell-crank and adapted when in one position to hold the pin of the actuatingrod in the central short slot or notch and when in another position to release said pin and permit it to reciprocate idly in the long slot, and a weight connected with said catch for holding it in engagement with the pin on the actuating-rod.

5. Apump-operating mechanism including a bell-crank suitably mounted with one arm provided with a head having in it a long slot and a short slot or notch communicating with the long slot, a reciprocating rod for actuating said bellcrank with a pin extending lthrough the slot in the head of the bell-crank, a movable catch pivoted to the head of the bell-crank and adapted when in one position to hold the pin of the actuating-rod in the short slot and when in another position to release said pin and permit it to reciprocateidly in the long slot, and a driving-wheel with a number of holes therein located at varying distances from the center thereof in which the actuating-rod may be pivoted.

6. A pump-operating mechanism including a pump-rod, a trunnion with a central vertical groove in it for the pump-rodand having a central longitudinal slot in it, a clampingplate with a vertical groove in it opposite the groove in the trunnion and a horizontal extension adapted to rest above and below said trunnion, a horizontal groove in the outer surface of said clamping-plate, a U-shaped bolt fitting in said groove and extending through the slot in the trunnion, nuts for tightening said bolt, and means for reciprocating the trunnion.

In witness whereof I have hereunto affixed my signature in the presence of the witnesses herein named.

GEORGE A. GEMMER. Witnesses:

GEORGE W. THOMPSON, JOHN T. STRANGE.

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